educoder/app/views/polls/commit_result.xlsx.axlsx

wb = xlsx_package.workbook
# wb.use_autowidth = false
wb.styles do |s|
  sz_all = s.add_style :sz => 10,:border => { :style => :thin, :color =>"000000"},:alignment => {wrap_text: true,:horizontal => :left}
  blue_cell = s.add_style :bg_color => "FAEBDC", :sz => 10,:height => 20,:b => true, :border => { :style => :thin, :color =>"000000" },:alignment => {wrap_text: true,:horizontal => :left}

  wb.add_worksheet(:name => "统计结果") do |sheet|
    sheet.sheet_view.show_grid_lines = false
    poll_users_info = %w(序号)
    poll_ques_titles = poll_questions.pluck(:question_title).map {|k| strip_export_title(k) if k.present?}
    poll_un_anony = @poll.un_anonymous
    if poll_un_anony   #是否匿名，默认为false
      user_info = %w(登陆名 真实姓名 邮箱 学号)
    else
      user_info = []
    end
    poll_users_info = poll_users_info + user_info + poll_ques_titles
    poll_questions.each do |q|
      if q.question_type != 3   #问题不为主观题
        question_vote_user = q.poll_votes.find_current_vote("user_id",@poll_commit_ids).count  #该问题的有效填写量
        sheet_row = ["第#{q.question_number}题"]  #选择题答案选项的数组
        sheet_answer_row = ["小计"]   #选择题回答的答案人数，数组
        sheet_answer_percent = ["比例"]
        sheet_answer_useful = ["有效填写人次",question_vote_user]
        q.poll_answers.each do |a|  #问卷的答案选项
          answer_users_count = a.poll_votes.find_current_vote("user_id",@poll_commit_ids).count
          answer_percent = number_to_percentage((answer_users_count.to_f / question_vote_user.to_f)*100,precision:1)
          sheet_row.push(a.answer_text)
          sheet_answer_row.push(answer_users_count)
          sheet_answer_percent.push(answer_percent.to_s)
        end
        sheet.add_row sheet_row, :height =>15,:style => blue_cell
        sheet.add_row sheet_answer_row, :height =>15, :style => sz_all
        sheet.add_row sheet_answer_percent, :height =>15, :style => sz_all
        sheet.add_row sheet_answer_useful, :height =>15, :style => sz_all
        #合并单元格，但无法填充style
        # sheet.merge_cells (Axlsx::cell_r(1,sheet.rows.last.row_index) + ':' + Axlsx::cell_r(sheet_row.count-1,sheet.rows.last.row_index))
        # sheet.rows[sheet.rows.last.row_index].style = sz_all
        sheet.add_row []
      else  #主观题答案
        main_show_row = ["第#{q.question_number}题",q.question_title]
        sheet.add_row main_show_row,:height =>15, :style => blue_cell
        q.poll_votes.each do |v|  #主观题的答案
          sheet.add_row ["",v.vote_text.present? ? v.vote_text : "--"],:height =>15, :style => sz_all
        end
        sheet.add_row [], :style => sz_all
      end
    end  #each_with_index

    sheet.add_row poll_users_info, :height =>15, :style => blue_cell
    @poll.poll_users.each_with_index do |u,index|
      u_user = u.user
      user_answer_array = []
      poll_questions.each do |q|
        user_poll_votes = u_user.poll_votes.find_current_vote("poll_question_id",q.id)
        if user_poll_votes.present?
          user_poll_answer_ids = user_poll_votes.pluck(:poll_answer_id).reject(&:blank?)
          user_poll_vote_texts = user_poll_votes.pluck(:vote_text).reject(&:blank?)
          if user_poll_answer_ids.count > 0
            answer_content = q.poll_answers.find_answer_by_custom("id",user_poll_answer_ids)
            if user_poll_answer_ids.count >1
              u_answer = answer_content.pluck(:answer_text).join(";")
            else
              u_answer = answer_content.first.answer_text
            end
          elsif user_poll_vote_texts.count > 0
            if user_poll_vote_texts.count > 1
              u_answer = user_poll_vote_texts.join(";")
            else
              u_answer = user_poll_vote_texts.first
            end
          else
            u_answer = "--"
          end
        else
          u_answer = "--"
        end
        user_answer_array.push(u_answer)
      end
      user_cell = [index+1]
      if poll_un_anony
        user_login = u_user.login
        user_name = u_user.real_name.present? ? u_user.real_name : "--"
        user_student_id = u_user.student_id.present? ? u_user.student_id : "--"
        user_cell += [user_login,user_name, u_user.mail, user_student_id]
      end
      all_user_cell = user_cell + user_answer_array
      sheet.add_row all_user_cell, :height =>15,:style => sz_all
    end
    sheet.column_widths *([25]*sheet.column_info.count)
    sheet.column_info.first.width = 10
  end  #add_worksheet
end